Prostate-Specific Antigen: Function, Testing, and Results
Prostate-specific antigen is a protein made mainly by the prostate that helps liquefy semen and can be measured in blood to assess prostate health.
PSA (Prostate-Specific Antigen): Meaning, Testing, and Results
PSA is a protein produced mainly by prostate tissue. A blood test measures its level to assess prostate conditions and monitor prostate cancer or treatment.